He put that out last night. David Leonhardt wonders if we should really worry our pretty little heads about all this: My colleagues Jonathan Swan, Maggie Haberman and Charlie Savage are writing a continuing series on what Donald Trump plans to do during a second term as president. With Trump on his way to winning the Republican nomination, I want to devote today’s newsletter to a conversation with the three of them. David: One question that some people have is whether Trump would govern as radically in a second term as his rhetoric suggests. After all, he also made sweeping promises when running in 2016, but he often failed to follow through. There is no border wall. He didn’t withdraw from Afghanistan. He didn’t “lock up” Hillary Clinton. The courts rejected his initial Muslim ban and his changes to the census. What’s your view about whether to assume he will really do what he says in a second term? Jonathan: I would challenge the statement that Trump didn’t do a lot of what he promised in his first term. Yes, there were some things he didn’t accomplish, and, yes, he initially appointed people who resisted his requests. But by the end of his first term, Trump had put the U.S. on a course to withdraw from Afghanistan. On immigration, he had all but destroyed the asylum system. On trade, he had implemented tariffs against China and even European allies, and he had withdrawn from the Trans-Pacific Partnership — President Obama’s signature trade deal. He’d pulled…